P0420 on the 2015 Subaru Impreza
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 1114414 | 2023-04-24. Service bulletin. Reprogramming Files for DTCs P0420, P2610 and P0134 |
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| 11-144-14 | 2017-02-21. Service bulletin. REPROGRAMMING FILES FOR DTCS P0420, P2610 AND P0134 |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.